Re: XML-RPC and HTTP Pipelining

<boykin <at> pobox.com>
2002-08-01 06:05:22 GMT

Hello Adam,
On Wed, Jul 31, 2002 at 11:37:26AM -0700, Adam Megacz wrote:
> I've seen many reports that XML-RPC still requires a round trip packet
> for each request when using HTTP pipelining, but nobody has ever
> explained why. This seems to go against common sense. TCP will let you
> transmit up to one windowful before it blocks to wait for reply from
> the other side.
>
> Does anybody have a detailed explanation of why HTTP Pipelining
> doesn't work, or is this just one of those "I couldn't figure it out
> so it must be impossible" things?
>
> http://www.xmlrpc.com/discuss/msgReader$1208
>
> http://www.geocrawler.com/archives/3/8934/2001/1/0/5027084/
>
> http://www.advogato.org/person/emk/diary.html?start=15
All three of the above are the same reference from Eric Kidd. Have you
asked Eric about it? I am not TCP Guru, but it seems like you are Eric
are saying almost the same the thing. Maybe the TCP window size is set
really small in the libwww (which I think Eric was using). This might
make sense because most GET requests are small.
One can easily check the libwww code and see what/if they set the
window.
Perhaps Eric will comment personally.

out of topic-- suggestions required

skyliner <skyliner24 <at> yahoo.com>
2002-08-01 06:26:43 GMT

Hi,
Till now I have used XML to a very limited extent.
I want to do some prototype related to XML in NMS
domain,basically to explore the
XML usage/benefits in NMS specific domain.
If anyone can give me some suggestions or give some
good pointers,
it will help me in a big way.
Thanks & Regards,
Sunita
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At 05:04 PM 8/1/2002 +0000, xml-rpc <at> yahoogroups.com wrote:
>Actually, my goal is to make ASP (as the client) talking with PHP (as
>the server) using XML-RPC. I have a PHP client and server script
>working fine, but if I use the same client script in ASP, it returns:
Looking at the error, it looks like the PHP server doesn't like the XML
it's getting. The code validates, so I'm not sure why. Does the ASP
client work against other servers, e.g. my server?
David
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New release of RPC::XML for Perl

Randy J. Ray <rjray <at> blackperl.com>
2002-08-01 18:49:32 GMT

I've uploaded version 0.42 of my RPC::XML module for Perl to CPAN.
This release includes several bug-fixes, and a major new feature. The bug-fixes
include a fix to one of the testing scripts to prevent false-failures, fix to
the way the server code examines the Content-Type header, and a major bug-fix
to handling of deserialization of Base64 data.
The new feature is content compression. Both the server and client classes now
support Compress::Zlib-based compression if the module is installed. Headers
are set on both ends so as to be compatible with the compression scheme in
XMLRPC::Lite.
RPC::XML may be downloaded from CPAN:
http://search.cpan.org/search?dist=RPC-XML
Randy
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Re: german umlauts

Stephane Bortzmeyer wrote:
>> Actually the specification is very clear: strings should be
>> "encoded" using ASCII (0-127), which is IMHO pretty stupid.
>
> A strong opinion from the author of the XML-RPC library I use:
>
> http://www.eekim.com/distcomp/200202-python-xml-sig/msg00028.html
That's all fine and dandy, but if Dave Winer in private correnspondance
has been 100% clear that we can use anything that parses as valid XML,
he should tell us so on the specs page -- we cannot see his private mail.
// Klaus
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